wind erosion and depostion directed reading

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Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Directed Reading A
Section: Wind Erosion and Deposition
_____ 1. How do plants reduce wind erosion?
a. Plants shade the soil.
b. Plant roots hold sand and soil in place.
c. Plants break down and make soil.
d. Plant roots help break up soil.
THE PROCESS OF WIND EROSION
Match the correct description with the correct term. Write the letter in the space
provided. Some terms will not be used.
_____ 2. wind causes sand-sized particles to skip
and bounce
_____ 3. wind erosion in which fine, dry soil
particles are blown away
a.
b.
c.
d.
e.
deflation hollows
abrasion
saltation
deflation
desert pavement
_____ 4. grinding and wearing down of rock by
other rock or sand
WIND-DEPOSITED MATERIALS
_____ 5. Wind carries particles like rivers carry
a. water.
b. grass.
c. sediment.
d. fish.
_____ 6. Very fine-grained sediment deposited by wind is called
a. dunes.
b. beach.
c. loess.
d. talcum.
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
3
Agents of Erosion and Deposition
Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
Place the five steps involved in forming a sand dune in order from first to last.
Write the appropriate number in the space provided.
_____ 7. Material collects and creates an additional obstacle.
_____ 8. Wind deposits more material, forming a mound or dune.
_____ 9. Slowing wind drops the heavier particles.
_____ 10. Wind hits a rock, plant, or other object and slows down.
_____ 11. The original object eventually becomes buried.
12. Explain how dunes migrate in the direction of the wind.
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
4
Agents of Erosion and Deposition
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